dma-mapping: consolidate dma_{alloc,free}_{attrs,coherent}

[karo-tx-linux.git] / arch / arm / mm / dma-mapping.c

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 9f509b2643461b7934d7db9132301ecd5dbd7b13..e62604384945e513a9b1ed14a2a5a2e3d8950630 100644 (file)
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -676,10 +676,6 @@ void *arm_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
                    gfp_t gfp, struct dma_attrs *attrs)
 {
        pgprot_t prot = __get_dma_pgprot(attrs, PAGE_KERNEL);
-       void *memory;
-
-       if (dma_alloc_from_coherent(dev, size, handle, &memory))
-               return memory;
 
        return __dma_alloc(dev, size, handle, gfp, prot, false,
                           attrs, __builtin_return_address(0));
@@ -688,11 +684,6 @@ void *arm_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 static void *arm_coherent_dma_alloc(struct device *dev, size_t size,
        dma_addr_t *handle, gfp_t gfp, struct dma_attrs *attrs)
 {
-       void *memory;
-
-       if (dma_alloc_from_coherent(dev, size, handle, &memory))
-               return memory;
-
        return __dma_alloc(dev, size, handle, gfp, PAGE_KERNEL, true,
                           attrs, __builtin_return_address(0));
 }
@@ -752,9 +743,6 @@ static void __arm_dma_free(struct device *dev, size_t size, void *cpu_addr,
        struct page *page = pfn_to_page(dma_to_pfn(dev, handle));
        bool want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs);
 
-       if (dma_release_from_coherent(dev, get_order(size), cpu_addr))
-               return;
-
        size = PAGE_ALIGN(size);
 
        if (nommu()) {
@@ -1524,7 +1512,7 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg,
                return -ENOMEM;
 
        for (count = 0, s = sg; count < (size >> PAGE_SHIFT); s = sg_next(s)) {
-               phys_addr_t phys = page_to_phys(sg_page(s));
+               phys_addr_t phys = sg_phys(s) & PAGE_MASK;
                unsigned int len = PAGE_ALIGN(s->offset + s->length);
 
                if (!is_coherent &&